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Merge pull request #6815 from obsidiansystems/better-wanted-outputs

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`OutputSpec` for `DerivationGoal` and `DerivedPath`, today's `OutputSpec` -> `ExtendedOutputSpec`
This commit is contained in:
Robert Hensing 2023-01-13 16:03:12 +01:00 committed by GitHub
commit d21f54958e
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GPG key ID: 4AEE18F83AFDEB23
34 changed files with 739 additions and 304 deletions
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184
src/libcmd/installables.cc
View file

@ -1,5 +1,6 @@
#include "globals.hh"
#include "installables.hh"
#include "outputs-spec.hh"
#include "util.hh"
#include "command.hh"
#include "attr-path.hh"
@ -401,18 +402,6 @@ struct InstallableStorePath : Installable
ref<Store> store;
DerivedPath req;
InstallableStorePath(ref<Store> store, StorePath && storePath)
: store(store),
req(storePath.isDerivation()
? (DerivedPath) DerivedPath::Built {
.drvPath = std::move(storePath),
.outputs = {},
}
: (DerivedPath) DerivedPath::Opaque {
.path = std::move(storePath),
})
{ }
InstallableStorePath(ref<Store> store, DerivedPath && req)
: store(store), req(std::move(req))
{ }
@ -445,19 +434,19 @@ struct InstallableAttrPath : InstallableValue
SourceExprCommand & cmd;
RootValue v;
std::string attrPath;
OutputsSpec outputsSpec;
ExtendedOutputsSpec extendedOutputsSpec;
InstallableAttrPath(
ref<EvalState> state,
SourceExprCommand & cmd,
Value * v,
const std::string & attrPath,
OutputsSpec outputsSpec)
ExtendedOutputsSpec extendedOutputsSpec)
: InstallableValue(state)
, cmd(cmd)
, v(allocRootValue(v))
, attrPath(attrPath)
, outputsSpec(std::move(outputsSpec))
, extendedOutputsSpec(std::move(extendedOutputsSpec))
{ }
std::string what() const override { return attrPath; }
@ -480,30 +469,39 @@ struct InstallableAttrPath : InstallableValue
// Backward compatibility hack: group results by drvPath. This
// helps keep .all output together.
std::map<StorePath, DerivedPath::Built> byDrvPath;
std::map<StorePath, OutputsSpec> byDrvPath;
for (auto & drvInfo : drvInfos) {
auto drvPath = drvInfo.queryDrvPath();
if (!drvPath)
throw Error("'%s' is not a derivation", what());
auto newOutputs = std::visit(overloaded {
[&](const ExtendedOutputsSpec::Default & d) -> OutputsSpec {
std::set<std::string> outputsToInstall;
if (auto outputNames = std::get_if<OutputNames>(&outputsSpec))
outputsToInstall = *outputNames;
else
for (auto & output : drvInfo.queryOutputs(false, std::get_if<DefaultOutputs>(&outputsSpec)))
for (auto & output : drvInfo.queryOutputs(false, true))
outputsToInstall.insert(output.first);
return OutputsSpec::Names { std::move(outputsToInstall) };
},
[&](const ExtendedOutputsSpec::Explicit & e) -> OutputsSpec {
return e;
},
}, extendedOutputsSpec.raw());
auto derivedPath = byDrvPath.emplace(*drvPath, DerivedPath::Built { .drvPath = *drvPath }).first;
auto [iter, didInsert] = byDrvPath.emplace(*drvPath, newOutputs);
for (auto & output : outputsToInstall)
derivedPath->second.outputs.insert(output);
if (!didInsert)
iter->second = iter->second.union_(newOutputs);
}
DerivedPathsWithInfo res;
for (auto & [_, info] : byDrvPath)
res.push_back({ .path = { info } });
for (auto & [drvPath, outputs] : byDrvPath)
res.push_back({
.path = DerivedPath::Built {
.drvPath = drvPath,
.outputs = outputs,
},
});
return res;
}
@ -580,7 +578,7 @@ InstallableFlake::InstallableFlake(
ref<EvalState> state,
FlakeRef && flakeRef,
std::string_view fragment,
OutputsSpec outputsSpec,
ExtendedOutputsSpec extendedOutputsSpec,
Strings attrPaths,
Strings prefixes,
const flake::LockFlags & lockFlags)
@ -588,7 +586,7 @@ InstallableFlake::InstallableFlake(
flakeRef(flakeRef),
attrPaths(fragment == "" ? attrPaths : Strings{(std::string) fragment}),
prefixes(fragment == "" ? Strings{} : prefixes),
outputsSpec(std::move(outputsSpec)),
extendedOutputsSpec(std::move(extendedOutputsSpec)),
lockFlags(lockFlags)
{
if (cmd && cmd->getAutoArgs(*state)->size())
@ -638,48 +636,47 @@ DerivedPathsWithInfo InstallableFlake::toDerivedPaths()
auto drvPath = attr->forceDerivation();
std::set<std::string> outputsToInstall;
std::optional<NixInt> priority;
if (attr->maybeGetAttr(state->sOutputSpecified)) {
} else if (auto aMeta = attr->maybeGetAttr(state->sMeta)) {
if (auto aPriority = aMeta->maybeGetAttr("priority"))
priority = aPriority->getInt();
}
return {{
.path = DerivedPath::Built {
.drvPath = std::move(drvPath),
.outputs = std::visit(overloaded {
[&](const ExtendedOutputsSpec::Default & d) -> OutputsSpec {
std::set<std::string> outputsToInstall;
if (auto aOutputSpecified = attr->maybeGetAttr(state->sOutputSpecified)) {
if (aOutputSpecified->getBool()) {
if (auto aOutputName = attr->maybeGetAttr("outputName"))
outputsToInstall = { aOutputName->getString() };
}
}
else if (auto aMeta = attr->maybeGetAttr(state->sMeta)) {
} else if (auto aMeta = attr->maybeGetAttr(state->sMeta)) {
if (auto aOutputsToInstall = aMeta->maybeGetAttr("outputsToInstall"))
for (auto & s : aOutputsToInstall->getListOfStrings())
outputsToInstall.insert(s);
if (auto aPriority = aMeta->maybeGetAttr("priority"))
priority = aPriority->getInt();
}
if (outputsToInstall.empty() || std::get_if<AllOutputs>(&outputsSpec)) {
outputsToInstall.clear();
if (auto aOutputs = attr->maybeGetAttr(state->sOutputs))
for (auto & s : aOutputs->getListOfStrings())
outputsToInstall.insert(s);
}
if (outputsToInstall.empty())
outputsToInstall.insert("out");
if (auto outputNames = std::get_if<OutputNames>(&outputsSpec))
outputsToInstall = *outputNames;
return {{
.path = DerivedPath::Built {
.drvPath = std::move(drvPath),
.outputs = std::move(outputsToInstall),
return OutputsSpec::Names { std::move(outputsToInstall) };
},
[&](const ExtendedOutputsSpec::Explicit & e) -> OutputsSpec {
return e;
},
}, extendedOutputsSpec.raw()),
},
.info = {
.priority = priority,
.originalRef = flakeRef,
.resolvedRef = getLockedFlake()->flake.lockedRef,
.attrPath = attrPath,
.outputsSpec = outputsSpec,
.extendedOutputsSpec = extendedOutputsSpec,
}
}};
}
@ -796,12 +793,12 @@ std::vector<std::shared_ptr<Installable>> SourceExprCommand::parseInstallables(
}
for (auto & s : ss) {
auto [prefix, outputsSpec] = parseOutputsSpec(s);
auto [prefix, extendedOutputsSpec] = ExtendedOutputsSpec::parse(s);
result.push_back(
std::make_shared<InstallableAttrPath>(
state, *this, vFile,
prefix == "." ? "" : prefix,
outputsSpec));
prefix == "." ? "" : std::string { prefix },
extendedOutputsSpec));
}
} else {
@ -809,24 +806,46 @@ std::vector<std::shared_ptr<Installable>> SourceExprCommand::parseInstallables(
for (auto & s : ss) {
std::exception_ptr ex;
auto found = s.rfind('^');
if (found != std::string::npos) {
try {
result.push_back(std::make_shared<InstallableStorePath>(
store,
DerivedPath::Built::parse(*store, s.substr(0, found), s.substr(found + 1))));
continue;
} catch (BadStorePath &) {
} catch (...) {
if (!ex)
ex = std::current_exception();
}
}
auto [prefix_, extendedOutputsSpec_] = ExtendedOutputsSpec::parse(s);
// To avoid clang's pedantry
auto prefix = std::move(prefix_);
auto extendedOutputsSpec = std::move(extendedOutputsSpec_);
found = s.find('/');
auto found = prefix.find('/');
if (found != std::string::npos) {
try {
result.push_back(std::make_shared<InstallableStorePath>(store, store->followLinksToStorePath(s)));
auto derivedPath = std::visit(overloaded {
// If the user did not use ^, we treat the output more liberally.
[&](const ExtendedOutputsSpec::Default &) -> DerivedPath {
// First, we accept a symlink chain or an actual store path.
auto storePath = store->followLinksToStorePath(prefix);
// Second, we see if the store path ends in `.drv` to decide what sort
// of derived path they want.
//
// This handling predates the `^` syntax. The `^*` in
// `/nix/store/hash-foo.drv^*` unambiguously means "do the
// `DerivedPath::Built` case", so plain `/nix/store/hash-foo.drv` could
// also unambiguously mean "do the DerivedPath::Opaque` case".
//
// Issue #7261 tracks reconsidering this `.drv` dispatching.
return storePath.isDerivation()
? (DerivedPath) DerivedPath::Built {
.drvPath = std::move(storePath),
.outputs = OutputsSpec::All {},
}
: (DerivedPath) DerivedPath::Opaque {
.path = std::move(storePath),
};
},
// If the user did use ^, we just do exactly what is written.
[&](const ExtendedOutputsSpec::Explicit & outputSpec) -> DerivedPath {
return DerivedPath::Built {
.drvPath = store->parseStorePath(prefix),
.outputs = outputSpec,
};
},
}, extendedOutputsSpec.raw());
result.push_back(std::make_shared<InstallableStorePath>(store, std::move(derivedPath)));
continue;
} catch (BadStorePath &) {
} catch (...) {
@ -836,13 +855,13 @@ std::vector<std::shared_ptr<Installable>> SourceExprCommand::parseInstallables(
}
try {
auto [flakeRef, fragment, outputsSpec] = parseFlakeRefWithFragmentAndOutputsSpec(s, absPath("."));
auto [flakeRef, fragment] = parseFlakeRefWithFragment(std::string { prefix }, absPath("."));
result.push_back(std::make_shared<InstallableFlake>(
this,
getEvalState(),
std::move(flakeRef),
fragment,
outputsSpec,
extendedOutputsSpec,
getDefaultFlakeAttrPaths(),
getDefaultFlakeAttrPathPrefixes(),
lockFlags));
@ -917,32 +936,7 @@ std::vector<std::pair<std::shared_ptr<Installable>, BuiltPathWithResult>> Instal
for (auto & aux : backmap[path]) {
std::visit(overloaded {
[&](const DerivedPath::Built & bfd) {
OutputPathMap outputs;
auto drv = evalStore->readDerivation(bfd.drvPath);
auto outputHashes = staticOutputHashes(*evalStore, drv); // FIXME: expensive
auto drvOutputs = drv.outputsAndOptPaths(*store);
for (auto & output : bfd.outputs) {
auto outputHash = get(outputHashes, output);
if (!outputHash)
throw Error(
"the derivation '%s' doesn't have an output named '%s'",
store->printStorePath(bfd.drvPath), output);
if (settings.isExperimentalFeatureEnabled(Xp::CaDerivations)) {
DrvOutput outputId { *outputHash, output };
auto realisation = store->queryRealisation(outputId);
if (!realisation)
throw MissingRealisation(outputId);
outputs.insert_or_assign(output, realisation->outPath);
} else {
// If ca-derivations isn't enabled, assume that
// the output path is statically known.
auto drvOutput = get(drvOutputs, output);
assert(drvOutput);
assert(drvOutput->second);
outputs.insert_or_assign(
output, *drvOutput->second);
}
}
auto outputs = resolveDerivedPath(*store, bfd, &*evalStore);
res.push_back({aux.installable, {
.path = BuiltPath::Built { bfd.drvPath, outputs },
.info = aux.info}});

6
src/libcmd/installables.hh
View file

@ -59,7 +59,7 @@ struct ExtraPathInfo
std::optional<FlakeRef> resolvedRef;
std::optional<std::string> attrPath;
// FIXME: merge with DerivedPath's 'outputs' field?
std::optional<OutputsSpec> outputsSpec;
std::optional<ExtendedOutputsSpec> extendedOutputsSpec;
};
/* A derived path with any additional info that commands might
@ -169,7 +169,7 @@ struct InstallableFlake : InstallableValue
FlakeRef flakeRef;
Strings attrPaths;
Strings prefixes;
OutputsSpec outputsSpec;
ExtendedOutputsSpec extendedOutputsSpec;
const flake::LockFlags & lockFlags;
mutable std::shared_ptr<flake::LockedFlake> _lockedFlake;
@ -178,7 +178,7 @@ struct InstallableFlake : InstallableValue
ref<EvalState> state,
FlakeRef && flakeRef,
std::string_view fragment,
OutputsSpec outputsSpec,
ExtendedOutputsSpec extendedOutputsSpec,
Strings attrPaths,
Strings prefixes,
const flake::LockFlags & lockFlags);

7
src/libcmd/repl.cc
View file

@ -641,7 +641,12 @@ bool NixRepl::processLine(std::string line)
Path drvPathRaw = state->store->printStorePath(drvPath);
if (command == ":b" || command == ":bl") {
state->store->buildPaths({DerivedPath::Built{drvPath}});
state->store->buildPaths({
DerivedPath::Built {
.drvPath = drvPath,
.outputs = OutputsSpec::All { },
},
});
auto drv = state->store->readDerivation(drvPath);
logger->cout("\nThis derivation produced the following outputs:");
for (auto & [outputName, outputPath] : state->store->queryDerivationOutputMap(drvPath)) {

8
src/libexpr/flake/flakeref.cc
View file

@ -238,15 +238,15 @@ std::pair<fetchers::Tree, FlakeRef> FlakeRef::fetchTree(ref<Store> store) const
return {std::move(tree), FlakeRef(std::move(lockedInput), subdir)};
}
std::tuple<FlakeRef, std::string, OutputsSpec> parseFlakeRefWithFragmentAndOutputsSpec(
std::tuple<FlakeRef, std::string, ExtendedOutputsSpec> parseFlakeRefWithFragmentAndExtendedOutputsSpec(
const std::string & url,
const std::optional<Path> & baseDir,
bool allowMissing,
bool isFlake)
{
auto [prefix, outputsSpec] = parseOutputsSpec(url);
auto [flakeRef, fragment] = parseFlakeRefWithFragment(prefix, baseDir, allowMissing, isFlake);
return {std::move(flakeRef), fragment, outputsSpec};
auto [prefix, extendedOutputsSpec] = ExtendedOutputsSpec::parse(url);
auto [flakeRef, fragment] = parseFlakeRefWithFragment(std::string { prefix }, baseDir, allowMissing, isFlake);
return {std::move(flakeRef), fragment, extendedOutputsSpec};
}
}

2
src/libexpr/flake/flakeref.hh
View file

@ -80,7 +80,7 @@ std::pair<FlakeRef, std::string> parseFlakeRefWithFragment(
std::optional<std::pair<FlakeRef, std::string>> maybeParseFlakeRefWithFragment(
const std::string & url, const std::optional<Path> & baseDir = {});
std::tuple<FlakeRef, std::string, OutputsSpec> parseFlakeRefWithFragmentAndOutputsSpec(
std::tuple<FlakeRef, std::string, ExtendedOutputsSpec> parseFlakeRefWithFragmentAndExtendedOutputsSpec(
const std::string & url,
const std::optional<Path> & baseDir = {},
bool allowMissing = false,

16
src/libexpr/primops.cc
View file

@ -53,7 +53,7 @@ StringMap EvalState::realiseContext(const PathSet & context)
[&](const NixStringContextElem::Built & b) {
drvs.push_back(DerivedPath::Built {
.drvPath = b.drvPath,
.outputs = std::set { b.output },
.outputs = OutputsSpec::Names { b.output },
});
ensureValid(b.drvPath);
},
@ -84,16 +84,12 @@ StringMap EvalState::realiseContext(const PathSet & context)
store->buildPaths(buildReqs);
/* Get all the output paths corresponding to the placeholders we had */
for (auto & [drvPath, outputs] : drvs) {
const auto outputPaths = store->queryDerivationOutputMap(drvPath);
for (auto & outputName : outputs) {
auto outputPath = get(outputPaths, outputName);
if (!outputPath)
debugThrowLastTrace(Error("derivation '%s' does not have an output named '%s'",
store->printStorePath(drvPath), outputName));
for (auto & drv : drvs) {
auto outputs = resolveDerivedPath(*store, drv);
for (auto & [outputName, outputPath] : outputs) {
res.insert_or_assign(
downstreamPlaceholder(*store, drvPath, outputName),
store->printStorePath(*outputPath)
downstreamPlaceholder(*store, drv.drvPath, outputName),
store->printStorePath(outputPath)
);
}
}

48
src/libstore/build/derivation-goal.cc
View file

@ -63,7 +63,7 @@
namespace nix {
DerivationGoal::DerivationGoal(const StorePath & drvPath,
const StringSet & wantedOutputs, Worker & worker, BuildMode buildMode)
const OutputsSpec & wantedOutputs, Worker & worker, BuildMode buildMode)
: Goal(worker, DerivedPath::Built { .drvPath = drvPath, .outputs = wantedOutputs })
, useDerivation(true)
, drvPath(drvPath)
@ -82,7 +82,7 @@ DerivationGoal::DerivationGoal(const StorePath & drvPath,
DerivationGoal::DerivationGoal(const StorePath & drvPath, const BasicDerivation & drv,
const StringSet & wantedOutputs, Worker & worker, BuildMode buildMode)
const OutputsSpec & wantedOutputs, Worker & worker, BuildMode buildMode)
: Goal(worker, DerivedPath::Built { .drvPath = drvPath, .outputs = wantedOutputs })
, useDerivation(false)
, drvPath(drvPath)
@ -142,18 +142,12 @@ void DerivationGoal::work()
(this->*state)();
}
void DerivationGoal::addWantedOutputs(const StringSet & outputs)
void DerivationGoal::addWantedOutputs(const OutputsSpec & outputs)
{
/* If we already want all outputs, there is nothing to do. */
if (wantedOutputs.empty()) return;
if (outputs.empty()) {
wantedOutputs.clear();
needRestart = true;
} else
for (auto & i : outputs)
if (wantedOutputs.insert(i).second)
auto newWanted = wantedOutputs.union_(outputs);
if (!newWanted.isSubsetOf(wantedOutputs))
needRestart = true;
wantedOutputs = newWanted;
}
@ -390,7 +384,7 @@ void DerivationGoal::repairClosure()
auto outputs = queryDerivationOutputMap();
StorePathSet outputClosure;
for (auto & i : outputs) {
if (!wantOutput(i.first, wantedOutputs)) continue;
if (!wantedOutputs.contains(i.first)) continue;
worker.store.computeFSClosure(i.second, outputClosure);
}
@ -422,7 +416,7 @@ void DerivationGoal::repairClosure()
if (drvPath2 == outputsToDrv.end())
addWaitee(upcast_goal(worker.makePathSubstitutionGoal(i, Repair)));
else
addWaitee(worker.makeDerivationGoal(drvPath2->second, StringSet(), bmRepair));
addWaitee(worker.makeDerivationGoal(drvPath2->second, OutputsSpec::All(), bmRepair));
}
if (waitees.empty()) {
@ -991,10 +985,15 @@ void DerivationGoal::resolvedFinished()
StorePathSet outputPaths;
// `wantedOutputs` might be empty, which means “all the outputs”
auto realWantedOutputs = wantedOutputs;
if (realWantedOutputs.empty())
realWantedOutputs = resolvedDrv.outputNames();
// `wantedOutputs` might merely indicate “all the outputs”
auto realWantedOutputs = std::visit(overloaded {
[&](const OutputsSpec::All &) {
return resolvedDrv.outputNames();
},
[&](const OutputsSpec::Names & names) {
return static_cast<std::set<std::string>>(names);
},
}, wantedOutputs.raw());
for (auto & wantedOutput : realWantedOutputs) {
auto initialOutput = get(initialOutputs, wantedOutput);
@ -1322,7 +1321,14 @@ std::pair<bool, DrvOutputs> DerivationGoal::checkPathValidity()
if (!drv->type().isPure()) return { false, {} };
bool checkHash = buildMode == bmRepair;
auto wantedOutputsLeft = wantedOutputs;
auto wantedOutputsLeft = std::visit(overloaded {
[&](const OutputsSpec::All &) {
return StringSet {};
},
[&](const OutputsSpec::Names & names) {
return static_cast<StringSet>(names);
},
}, wantedOutputs.raw());
DrvOutputs validOutputs;
for (auto & i : queryPartialDerivationOutputMap()) {
@ -1331,7 +1337,7 @@ std::pair<bool, DrvOutputs> DerivationGoal::checkPathValidity()
// this is an invalid output, gets catched with (!wantedOutputsLeft.empty())
continue;
auto & info = *initialOutput;
info.wanted = wantOutput(i.first, wantedOutputs);
info.wanted = wantedOutputs.contains(i.first);
if (info.wanted)
wantedOutputsLeft.erase(i.first);
if (i.second) {
@ -1369,7 +1375,7 @@ std::pair<bool, DrvOutputs> DerivationGoal::checkPathValidity()
validOutputs.emplace(drvOutput, Realisation { drvOutput, info.known->path });
}
// If we requested all the outputs via the empty set, we are always fine.
// If we requested all the outputs, we are always fine.
// If we requested specific elements, the loop above removes all the valid
// ones, so any that are left must be invalid.
if (!wantedOutputsLeft.empty())

9
src/libstore/build/derivation-goal.hh
View file

@ -2,6 +2,7 @@
#include "parsed-derivations.hh"
#include "lock.hh"
#include "outputs-spec.hh"
#include "store-api.hh"
#include "pathlocks.hh"
#include "goal.hh"
@ -55,7 +56,7 @@ struct DerivationGoal : public Goal
/* The specific outputs that we need to build. Empty means all of
them. */
StringSet wantedOutputs;
OutputsSpec wantedOutputs;
/* Mapping from input derivations + output names to actual store
paths. This is filled in by waiteeDone() as each dependency
@ -128,10 +129,10 @@ struct DerivationGoal : public Goal
std::string machineName;
DerivationGoal(const StorePath & drvPath,
const StringSet & wantedOutputs, Worker & worker,
const OutputsSpec & wantedOutputs, Worker & worker,
BuildMode buildMode = bmNormal);
DerivationGoal(const StorePath & drvPath, const BasicDerivation & drv,
const StringSet & wantedOutputs, Worker & worker,
const OutputsSpec & wantedOutputs, Worker & worker,
BuildMode buildMode = bmNormal);
virtual ~DerivationGoal();
@ -142,7 +143,7 @@ struct DerivationGoal : public Goal
void work() override;
/* Add wanted outputs to an already existing derivation goal. */
void addWantedOutputs(const StringSet & outputs);
void addWantedOutputs(const OutputsSpec & outputs);
/* The states. */
void getDerivation();

10
src/libstore/build/entry-points.cc
View file

@ -80,7 +80,7 @@ BuildResult Store::buildDerivation(const StorePath & drvPath, const BasicDerivat
BuildMode buildMode)
{
Worker worker(*this, *this);
auto goal = worker.makeBasicDerivationGoal(drvPath, drv, {}, buildMode);
auto goal = worker.makeBasicDerivationGoal(drvPath, drv, OutputsSpec::All {}, buildMode);
try {
worker.run(Goals{goal});
@ -89,7 +89,10 @@ BuildResult Store::buildDerivation(const StorePath & drvPath, const BasicDerivat
return BuildResult {
.status = BuildResult::MiscFailure,
.errorMsg = e.msg(),
.path = DerivedPath::Built { .drvPath = drvPath },
.path = DerivedPath::Built {
.drvPath = drvPath,
.outputs = OutputsSpec::All { },
},
};
};
}
@ -130,7 +133,8 @@ void LocalStore::repairPath(const StorePath & path)
auto info = queryPathInfo(path);
if (info->deriver && isValidPath(*info->deriver)) {
goals.clear();
goals.insert(worker.makeDerivationGoal(*info->deriver, StringSet(), bmRepair));
// FIXME: Should just build the specific output we need.
goals.insert(worker.makeDerivationGoal(*info->deriver, OutputsSpec::All { }, bmRepair));
worker.run(goals);
} else
throw Error(worker.exitStatus(), "cannot repair path '%s'", printStorePath(path));

2
src/libstore/build/local-derivation-goal.cc
View file

@ -2735,7 +2735,7 @@ DrvOutputs LocalDerivationGoal::registerOutputs()
signRealisation(thisRealisation);
worker.store.registerDrvOutput(thisRealisation);
}
if (wantOutput(outputName, wantedOutputs))
if (wantedOutputs.contains(outputName))
builtOutputs.emplace(thisRealisation.id, thisRealisation);
}

6
src/libstore/build/worker.cc
View file

@ -42,7 +42,7 @@ Worker::~Worker()
std::shared_ptr<DerivationGoal> Worker::makeDerivationGoalCommon(
const StorePath & drvPath,
const StringSet & wantedOutputs,
const OutputsSpec & wantedOutputs,
std::function<std::shared_ptr<DerivationGoal>()> mkDrvGoal)
{
std::weak_ptr<DerivationGoal> & goal_weak = derivationGoals[drvPath];
@ -59,7 +59,7 @@ std::shared_ptr<DerivationGoal> Worker::makeDerivationGoalCommon(
std::shared_ptr<DerivationGoal> Worker::makeDerivationGoal(const StorePath & drvPath,
const StringSet & wantedOutputs, BuildMode buildMode)
const OutputsSpec & wantedOutputs, BuildMode buildMode)
{
return makeDerivationGoalCommon(drvPath, wantedOutputs, [&]() -> std::shared_ptr<DerivationGoal> {
return !dynamic_cast<LocalStore *>(&store)
@ -70,7 +70,7 @@ std::shared_ptr<DerivationGoal> Worker::makeDerivationGoal(const StorePath & drv
std::shared_ptr<DerivationGoal> Worker::makeBasicDerivationGoal(const StorePath & drvPath,
const BasicDerivation & drv, const StringSet & wantedOutputs, BuildMode buildMode)
const BasicDerivation & drv, const OutputsSpec & wantedOutputs, BuildMode buildMode)
{
return makeDerivationGoalCommon(drvPath, wantedOutputs, [&]() -> std::shared_ptr<DerivationGoal> {
return !dynamic_cast<LocalStore *>(&store)

6
src/libstore/build/worker.hh
View file

@ -140,15 +140,15 @@ public:
/* derivation goal */
private:
std::shared_ptr<DerivationGoal> makeDerivationGoalCommon(
const StorePath & drvPath, const StringSet & wantedOutputs,
const StorePath & drvPath, const OutputsSpec & wantedOutputs,
std::function<std::shared_ptr<DerivationGoal>()> mkDrvGoal);
public:
std::shared_ptr<DerivationGoal> makeDerivationGoal(
const StorePath & drvPath,
const StringSet & wantedOutputs, BuildMode buildMode = bmNormal);
const OutputsSpec & wantedOutputs, BuildMode buildMode = bmNormal);
std::shared_ptr<DerivationGoal> makeBasicDerivationGoal(
const StorePath & drvPath, const BasicDerivation & drv,
const StringSet & wantedOutputs, BuildMode buildMode = bmNormal);
const OutputsSpec & wantedOutputs, BuildMode buildMode = bmNormal);
/* substitution goal */
std::shared_ptr<PathSubstitutionGoal> makePathSubstitutionGoal(const StorePath & storePath, RepairFlag repair = NoRepair, std::optional<ContentAddress> ca = std::nullopt);

6
src/libstore/derivations.cc
View file

@ -688,12 +688,6 @@ std::map<std::string, Hash> staticOutputHashes(Store & store, const Derivation &
}
bool wantOutput(const std::string & output, const std::set<std::string> & wanted)
{
return wanted.empty() || wanted.find(output) != wanted.end();
}
static DerivationOutput readDerivationOutput(Source & in, const Store & store)
{
const auto pathS = readString(in);

2
src/libstore/derivations.hh
View file

@ -294,8 +294,6 @@ typedef std::map<StorePath, DrvHash> DrvHashes;
// FIXME: global, though at least thread-safe.
extern Sync<DrvHashes> drvHashes;
bool wantOutput(const std::string & output, const std::set<std::string> & wanted);
struct Source;
struct Sink;

25
src/libstore/derived-path.cc
View file

@ -19,11 +19,11 @@ nlohmann::json DerivedPath::Built::toJSON(ref<Store> store) const {
res["drvPath"] = store->printStorePath(drvPath);
// Fallback for the input-addressed derivation case: We expect to always be
// able to print the output paths, so let’s do it
const auto knownOutputs = store->queryPartialDerivationOutputMap(drvPath);
for (const auto & output : outputs) {
auto knownOutput = get(knownOutputs, output);
if (knownOutput && *knownOutput)
res["outputs"][output] = store->printStorePath(**knownOutput);
const auto outputMap = store->queryPartialDerivationOutputMap(drvPath);
for (const auto & [output, outputPathOpt] : outputMap) {
if (!outputs.contains(output)) continue;
if (outputPathOpt)
res["outputs"][output] = store->printStorePath(*outputPathOpt);
else
res["outputs"][output] = nullptr;
}
@ -63,7 +63,7 @@ std::string DerivedPath::Built::to_string(const Store & store) const
{
return store.printStorePath(drvPath)
+ "!"
+ (outputs.empty() ? std::string { "*" } : concatStringsSep(",", outputs));
+ outputs.to_string();
}
std::string DerivedPath::to_string(const Store & store) const
@ -81,15 +81,10 @@ DerivedPath::Opaque DerivedPath::Opaque::parse(const Store & store, std::string_
DerivedPath::Built DerivedPath::Built::parse(const Store & store, std::string_view drvS, std::string_view outputsS)
{
auto drvPath = store.parseStorePath(drvS);
std::set<std::string> outputs;
if (outputsS != "*") {
outputs = tokenizeString<std::set<std::string>>(outputsS, ",");
if (outputs.empty())
throw Error(
"Explicit list of wanted outputs '%s' must not be empty. Consider using '*' as a wildcard meaning all outputs if no output in particular is wanted.", outputsS);
}
return {drvPath, outputs};
return {
.drvPath = store.parseStorePath(drvS),
.outputs = OutputsSpec::parse(outputsS),
};
}
DerivedPath DerivedPath::parse(const Store & store, std::string_view s)

3
src/libstore/derived-path.hh
View file

@ -3,6 +3,7 @@
#include "util.hh"
#include "path.hh"
#include "realisation.hh"
#include "outputs-spec.hh"
#include <optional>
@ -44,7 +45,7 @@ struct DerivedPathOpaque {
*/
struct DerivedPathBuilt {
StorePath drvPath;
std::set<std::string> outputs;
OutputsSpec outputs;
std::string to_string(const Store & store) const;
static DerivedPathBuilt parse(const Store & store, std::string_view, std::string_view);

7
src/libstore/legacy-ssh-store.cc
View file

@ -279,7 +279,12 @@ public:
conn->to.flush();
BuildResult status { .path = DerivedPath::Built { .drvPath = drvPath } };
BuildResult status {
.path = DerivedPath::Built {
.drvPath = drvPath,
.outputs = OutputsSpec::All { },
},
};
status.status = (BuildResult::Status) readInt(conn->from);
conn->from >> status.errorMsg;

45
src/libstore/misc.cc
View file

@ -185,7 +185,7 @@ void Store::queryMissing(const std::vector<DerivedPath> & targets,
knownOutputPaths = false;
break;
}
if (wantOutput(outputName, bfd.outputs) && !isValidPath(*pathOpt))
if (bfd.outputs.contains(outputName) && !isValidPath(*pathOpt))
invalid.insert(*pathOpt);
}
if (knownOutputPaths && invalid.empty()) return;
@ -301,4 +301,47 @@ std::map<DrvOutput, StorePath> drvOutputReferences(
return drvOutputReferences(Realisation::closure(store, inputRealisations), info->references);
}
OutputPathMap resolveDerivedPath(Store & store, const DerivedPath::Built & bfd, Store * evalStore_)
{
auto & evalStore = evalStore_ ? *evalStore_ : store;
OutputPathMap outputs;
auto drv = evalStore.readDerivation(bfd.drvPath);
auto outputHashes = staticOutputHashes(store, drv);
auto drvOutputs = drv.outputsAndOptPaths(store);
auto outputNames = std::visit(overloaded {
[&](const OutputsSpec::All &) {
StringSet names;
for (auto & [outputName, _] : drv.outputs)
names.insert(outputName);
return names;
},
[&](const OutputsSpec::Names & names) {
return static_cast<std::set<std::string>>(names);
},
}, bfd.outputs);
for (auto & output : outputNames) {
auto outputHash = get(outputHashes, output);
if (!outputHash)
throw Error(
"the derivation '%s' doesn't have an output named '%s'",
store.printStorePath(bfd.drvPath), output);
if (settings.isExperimentalFeatureEnabled(Xp::CaDerivations)) {
DrvOutput outputId { *outputHash, output };
auto realisation = store.queryRealisation(outputId);
if (!realisation)
throw MissingRealisation(outputId);
outputs.insert_or_assign(output, realisation->outPath);
} else {
// If ca-derivations isn't enabled, assume that
// the output path is statically known.
auto drvOutput = get(drvOutputs, output);
assert(drvOutput);
assert(drvOutput->second);
outputs.insert_or_assign(output, *drvOutput->second);
}
}
return outputs;
}
}

198
src/libstore/outputs-spec.cc
View file

@ -1,3 +1,4 @@
#include "util.hh"
#include "outputs-spec.hh"
#include "nlohmann/json.hpp"
@ -5,57 +6,184 @@
namespace nix {
std::pair<std::string, OutputsSpec> parseOutputsSpec(const std::string & s)
bool OutputsSpec::contains(const std::string & outputName) const
{
static std::regex regex(R"((.*)\^((\*)|([a-z]+(,[a-z]+)*)))");
std::smatch match;
if (!std::regex_match(s, match, regex))
return {s, DefaultOutputs()};
if (match[3].matched)
return {match[1], AllOutputs()};
return {match[1], tokenizeString<OutputNames>(match[4].str(), ",")};
return std::visit(overloaded {
[&](const OutputsSpec::All &) {
return true;
},
[&](const OutputsSpec::Names & outputNames) {
return outputNames.count(outputName) > 0;
},
}, raw());
}
std::string printOutputsSpec(const OutputsSpec & outputsSpec)
std::optional<OutputsSpec> OutputsSpec::parseOpt(std::string_view s)
{
if (std::get_if<DefaultOutputs>(&outputsSpec))
return "";
static std::regex regex(R"((\*)|([a-z]+(,[a-z]+)*))");
if (std::get_if<AllOutputs>(&outputsSpec))
return "^*";
std::smatch match;
std::string s2 { s }; // until some improves std::regex
if (!std::regex_match(s2, match, regex))
return std::nullopt;
if (auto outputNames = std::get_if<OutputNames>(&outputsSpec))
return "^" + concatStringsSep(",", *outputNames);
if (match[1].matched)
return { OutputsSpec::All {} };
if (match[2].matched)
return OutputsSpec::Names { tokenizeString<StringSet>(match[2].str(), ",") };
assert(false);
}
void to_json(nlohmann::json & json, const OutputsSpec & outputsSpec)
OutputsSpec OutputsSpec::parse(std::string_view s)
{
if (std::get_if<DefaultOutputs>(&outputsSpec))
json = nullptr;
else if (std::get_if<AllOutputs>(&outputsSpec))
json = std::vector<std::string>({"*"});
else if (auto outputNames = std::get_if<OutputNames>(&outputsSpec))
json = *outputNames;
std::optional spec = parseOpt(s);
if (!spec)
throw Error("Invalid outputs specifier: '%s'", s);
return *spec;
}
void from_json(const nlohmann::json & json, OutputsSpec & outputsSpec)
std::optional<std::pair<std::string_view, ExtendedOutputsSpec>> ExtendedOutputsSpec::parseOpt(std::string_view s)
{
if (json.is_null())
outputsSpec = DefaultOutputs();
else {
auto names = json.get<OutputNames>();
if (names == OutputNames({"*"}))
outputsSpec = AllOutputs();
auto found = s.rfind('^');
if (found == std::string::npos)
return std::pair { s, ExtendedOutputsSpec::Default {} };
auto specOpt = OutputsSpec::parseOpt(s.substr(found + 1));
if (!specOpt)
return std::nullopt;
return std::pair { s.substr(0, found), ExtendedOutputsSpec::Explicit { *std::move(specOpt) } };
}
std::pair<std::string_view, ExtendedOutputsSpec> ExtendedOutputsSpec::parse(std::string_view s)
{
std::optional spec = parseOpt(s);
if (!spec)
throw Error("Invalid extended outputs specifier: '%s'", s);
return *spec;
}
std::string OutputsSpec::to_string() const
{
return std::visit(overloaded {
[&](const OutputsSpec::All &) -> std::string {
return "*";
},
[&](const OutputsSpec::Names & outputNames) -> std::string {
return concatStringsSep(",", outputNames);
},
}, raw());
}
std::string ExtendedOutputsSpec::to_string() const
{
return std::visit(overloaded {
[&](const ExtendedOutputsSpec::Default &) -> std::string {
return "";
},
[&](const ExtendedOutputsSpec::Explicit & outputSpec) -> std::string {
return "^" + outputSpec.to_string();
},
}, raw());
}
OutputsSpec OutputsSpec::union_(const OutputsSpec & that) const
{
return std::visit(overloaded {
[&](const OutputsSpec::All &) -> OutputsSpec {
return OutputsSpec::All { };
},
[&](const OutputsSpec::Names & theseNames) -> OutputsSpec {
return std::visit(overloaded {
[&](const OutputsSpec::All &) -> OutputsSpec {
return OutputsSpec::All {};
},
[&](const OutputsSpec::Names & thoseNames) -> OutputsSpec {
OutputsSpec::Names ret = theseNames;
ret.insert(thoseNames.begin(), thoseNames.end());
return ret;
},
}, that.raw());
},
}, raw());
}
bool OutputsSpec::isSubsetOf(const OutputsSpec & that) const
{
return std::visit(overloaded {
[&](const OutputsSpec::All &) {
return true;
},
[&](const OutputsSpec::Names & thoseNames) {
return std::visit(overloaded {
[&](const OutputsSpec::All &) {
return false;
},
[&](const OutputsSpec::Names & theseNames) {
bool ret = true;
for (auto & o : theseNames)
if (thoseNames.count(o) == 0)
ret = false;
return ret;
},
}, raw());
},
}, that.raw());
}
}
namespace nlohmann {
using namespace nix;
OutputsSpec adl_serializer<OutputsSpec>::from_json(const json & json) {
auto names = json.get<StringSet>();
if (names == StringSet({"*"}))
return OutputsSpec::All {};
else
outputsSpec = names;
return OutputsSpec::Names { std::move(names) };
}
void adl_serializer<OutputsSpec>::to_json(json & json, OutputsSpec t) {
std::visit(overloaded {
[&](const OutputsSpec::All &) {
json = std::vector<std::string>({"*"});
},
[&](const OutputsSpec::Names & names) {
json = names;
},
}, t);
}
ExtendedOutputsSpec adl_serializer<ExtendedOutputsSpec>::from_json(const json & json) {
if (json.is_null())
return ExtendedOutputsSpec::Default {};
else {
return ExtendedOutputsSpec::Explicit { json.get<OutputsSpec>() };
}
}
void adl_serializer<ExtendedOutputsSpec>::to_json(json & json, ExtendedOutputsSpec t) {
std::visit(overloaded {
[&](const ExtendedOutputsSpec::Default &) {
json = nullptr;
},
[&](const ExtendedOutputsSpec::Explicit & e) {
adl_serializer<OutputsSpec>::to_json(json, e);
},
}, t);
}
}

93
src/libstore/outputs-spec.hh
View file

@ -1,32 +1,95 @@
#pragma once
#include <cassert>
#include <optional>
#include <set>
#include <variant>
#include "util.hh"
#include "nlohmann/json_fwd.hpp"
#include "json-impls.hh"
namespace nix {
typedef std::set<std::string> OutputNames;
struct OutputNames : std::set<std::string> {
using std::set<std::string>::set;
struct AllOutputs {
bool operator < (const AllOutputs & _) const { return false; }
/* These need to be "inherited manually" */
OutputNames(const std::set<std::string> & s)
: std::set<std::string>(s)
{ assert(!empty()); }
OutputNames(std::set<std::string> && s)
: std::set<std::string>(s)
{ assert(!empty()); }
/* This set should always be non-empty, so we delete this
constructor in order make creating empty ones by mistake harder.
*/
OutputNames() = delete;
};
struct DefaultOutputs {
bool operator < (const DefaultOutputs & _) const { return false; }
struct AllOutputs : std::monostate { };
typedef std::variant<AllOutputs, OutputNames> _OutputsSpecRaw;
struct OutputsSpec : _OutputsSpecRaw {
using Raw = _OutputsSpecRaw;
using Raw::Raw;
/* Force choosing a variant */
OutputsSpec() = delete;
using Names = OutputNames;
using All = AllOutputs;
inline const Raw & raw() const {
return static_cast<const Raw &>(*this);
}
inline Raw & raw() {
return static_cast<Raw &>(*this);
}
bool contains(const std::string & output) const;
/* Create a new OutputsSpec which is the union of this and that. */
OutputsSpec union_(const OutputsSpec & that) const;
/* Whether this OutputsSpec is a subset of that. */
bool isSubsetOf(const OutputsSpec & outputs) const;
/* Parse a string of the form 'output1,...outputN' or
'*', returning the outputs spec. */
static OutputsSpec parse(std::string_view s);
static std::optional<OutputsSpec> parseOpt(std::string_view s);
std::string to_string() const;
};
typedef std::variant<DefaultOutputs, AllOutputs, OutputNames> OutputsSpec;
struct DefaultOutputs : std::monostate { };
/* Parse a string of the form 'prefix^output1,...outputN' or
'prefix^*', returning the prefix and the outputs spec. */
std::pair<std::string, OutputsSpec> parseOutputsSpec(const std::string & s);
typedef std::variant<DefaultOutputs, OutputsSpec> _ExtendedOutputsSpecRaw;
std::string printOutputsSpec(const OutputsSpec & outputsSpec);
struct ExtendedOutputsSpec : _ExtendedOutputsSpecRaw {
using Raw = _ExtendedOutputsSpecRaw;
using Raw::Raw;
void to_json(nlohmann::json &, const OutputsSpec &);
void from_json(const nlohmann::json &, OutputsSpec &);
using Default = DefaultOutputs;
using Explicit = OutputsSpec;
inline const Raw & raw() const {
return static_cast<const Raw &>(*this);
}
/* Parse a string of the form 'prefix^output1,...outputN' or
'prefix^*', returning the prefix and the extended outputs spec. */
static std::pair<std::string_view, ExtendedOutputsSpec> parse(std::string_view s);
static std::optional<std::pair<std::string_view, ExtendedOutputsSpec>> parseOpt(std::string_view s);
std::string to_string() const;
};
}
JSON_IMPL(OutputsSpec)
JSON_IMPL(ExtendedOutputsSpec)

23
src/libstore/path-with-outputs.cc
View file

@ -15,10 +15,14 @@ std::string StorePathWithOutputs::to_string(const Store & store) const
DerivedPath StorePathWithOutputs::toDerivedPath() const
{
if (!outputs.empty() || path.isDerivation())
return DerivedPath::Built { path, outputs };
else
if (!outputs.empty()) {
return DerivedPath::Built { path, OutputsSpec::Names { outputs } };
} else if (path.isDerivation()) {
assert(outputs.empty());
return DerivedPath::Built { path, OutputsSpec::All { } };
} else {
return DerivedPath::Opaque { path };
}
}
@ -41,7 +45,18 @@ std::variant<StorePathWithOutputs, StorePath> StorePathWithOutputs::tryFromDeriv
return StorePathWithOutputs { bo.path };
},
[&](const DerivedPath::Built & bfd) -> std::variant<StorePathWithOutputs, StorePath> {
return StorePathWithOutputs { bfd.drvPath, bfd.outputs };
return StorePathWithOutputs {
.path = bfd.drvPath,
// Use legacy encoding of wildcard as empty set
.outputs = std::visit(overloaded {
[&](const OutputsSpec::All &) -> StringSet {
return {};
},
[&](const OutputsSpec::Names & outputs) {
return static_cast<StringSet>(outputs);
},
}, bfd.outputs.raw()),
};
},
}, p.raw());
}

1
src/libstore/path-with-outputs.hh
View file

@ -2,7 +2,6 @@
#include "path.hh"
#include "derived-path.hh"
#include "nlohmann/json_fwd.hpp"
namespace nix {

1
src/libstore/path.hh
View file

@ -64,7 +64,6 @@ public:
typedef std::set<StorePath> StorePathSet;
typedef std::vector<StorePath> StorePaths;
typedef std::map<std::string, StorePath> OutputPathMap;
typedef std::map<StorePath, std::optional<ContentAddress>> StorePathCAMap;

18
src/libstore/remote-store.cc
View file

@ -867,8 +867,8 @@ std::vector<BuildResult> RemoteStore::buildPathsWithResults(
OutputPathMap outputs;
auto drv = evalStore->readDerivation(bfd.drvPath);
const auto outputHashes = staticOutputHashes(*evalStore, drv); // FIXME: expensive
const auto drvOutputs = drv.outputsAndOptPaths(*this);
for (auto & output : bfd.outputs) {
auto built = resolveDerivedPath(*this, bfd, &*evalStore);
for (auto & [output, outputPath] : built) {
auto outputHash = get(outputHashes, output);
if (!outputHash)
throw Error(
@ -882,16 +882,11 @@ std::vector<BuildResult> RemoteStore::buildPathsWithResults(
throw MissingRealisation(outputId);
res.builtOutputs.emplace(realisation->id, *realisation);
} else {
// If ca-derivations isn't enabled, assume that
// the output path is statically known.
const auto drvOutput = get(drvOutputs, output);
assert(drvOutput);
assert(drvOutput->second);
res.builtOutputs.emplace(
outputId,
Realisation {
.id = outputId,
.outPath = *drvOutput->second,
.outPath = outputPath,
});
}
}
@ -915,7 +910,12 @@ BuildResult RemoteStore::buildDerivation(const StorePath & drvPath, const BasicD
writeDerivation(conn->to, *this, drv);
conn->to << buildMode;
conn.processStderr();
BuildResult res { .path = DerivedPath::Built { .drvPath = drvPath } };
BuildResult res {
.path = DerivedPath::Built {
.drvPath = drvPath,
.outputs = OutputsSpec::All { },
},
};
res.status = (BuildResult::Status) readInt(conn->from);
conn->from >> res.errorMsg;
if (GET_PROTOCOL_MINOR(conn->daemonVersion) >= 29) {

10
src/libstore/store-api.hh
View file

@ -71,6 +71,9 @@ class NarInfoDiskCache;
class Store;
typedef std::map<std::string, StorePath> OutputPathMap;
enum CheckSigsFlag : bool { NoCheckSigs = false, CheckSigs = true };
enum SubstituteFlag : bool { NoSubstitute = false, Substitute = true };
enum AllowInvalidFlag : bool { DisallowInvalid = false, AllowInvalid = true };
@ -120,6 +123,8 @@ public:
typedef std::map<std::string, std::string> Params;
protected:
struct PathInfoCacheValue {
@ -726,6 +731,11 @@ void copyClosure(
void removeTempRoots();
/* Resolve the derived path completely, failing if any derivation output
is unknown. */
OutputPathMap resolveDerivedPath(Store &, const DerivedPath::Built &, Store * evalStore = nullptr);
/* Return a Store object to access the Nix store denoted by
‘uri’ (slight misnomer...). Supported values are:

201
src/libstore/tests/outputs-spec.cc
View file

@ -1,46 +1,187 @@
#include "outputs-spec.hh"
#include <nlohmann/json.hpp>
#include <gtest/gtest.h>
namespace nix {
TEST(parseOutputsSpec, basic)
{
{
auto [prefix, outputsSpec] = parseOutputsSpec("foo");
ASSERT_EQ(prefix, "foo");
ASSERT_TRUE(std::get_if<DefaultOutputs>(&outputsSpec));
#ifndef NDEBUG
TEST(OutputsSpec, no_empty_names) {
ASSERT_DEATH(OutputsSpec::Names { std::set<std::string> { } }, "");
}
#endif
#define TEST_DONT_PARSE(NAME, STR) \
TEST(OutputsSpec, bad_ ## NAME) { \
std::optional OutputsSpecOpt = \
OutputsSpec::parseOpt(STR); \
ASSERT_FALSE(OutputsSpecOpt); \
}
{
auto [prefix, outputsSpec] = parseOutputsSpec("foo^*");
ASSERT_EQ(prefix, "foo");
ASSERT_TRUE(std::get_if<AllOutputs>(&outputsSpec));
TEST_DONT_PARSE(empty, "")
TEST_DONT_PARSE(garbage, "&*()")
TEST_DONT_PARSE(double_star, "**")
TEST_DONT_PARSE(star_first, "*,foo")
TEST_DONT_PARSE(star_second, "foo,*")
#undef TEST_DONT_PARSE
TEST(OutputsSpec, all) {
std::string_view str = "*";
OutputsSpec expected = OutputsSpec::All { };
ASSERT_EQ(OutputsSpec::parse(str), expected);
ASSERT_EQ(expected.to_string(), str);
}
TEST(OutputsSpec, names_out) {
std::string_view str = "out";
OutputsSpec expected = OutputsSpec::Names { "out" };
ASSERT_EQ(OutputsSpec::parse(str), expected);
ASSERT_EQ(expected.to_string(), str);
}
TEST(OutputsSpec, names_out_bin) {
OutputsSpec expected = OutputsSpec::Names { "out", "bin" };
ASSERT_EQ(OutputsSpec::parse("out,bin"), expected);
// N.B. This normalization is OK.
ASSERT_EQ(expected.to_string(), "bin,out");
}
#define TEST_SUBSET(X, THIS, THAT) \
X((OutputsSpec { THIS }).isSubsetOf(THAT));
TEST(OutputsSpec, subsets_all_all) {
TEST_SUBSET(ASSERT_TRUE, OutputsSpec::All { }, OutputsSpec::All { });
}
TEST(OutputsSpec, subsets_names_all) {
TEST_SUBSET(ASSERT_TRUE, OutputsSpec::Names { "a" }, OutputsSpec::All { });
}
TEST(OutputsSpec, subsets_names_names_eq) {
TEST_SUBSET(ASSERT_TRUE, OutputsSpec::Names { "a" }, OutputsSpec::Names { "a" });
}
TEST(OutputsSpec, subsets_names_names_noneq) {
TEST_SUBSET(ASSERT_TRUE, OutputsSpec::Names { "a" }, (OutputsSpec::Names { "a", "b" }));
}
TEST(OutputsSpec, not_subsets_all_names) {
TEST_SUBSET(ASSERT_FALSE, OutputsSpec::All { }, OutputsSpec::Names { "a" });
}
TEST(OutputsSpec, not_subsets_names_names) {
TEST_SUBSET(ASSERT_FALSE, (OutputsSpec::Names { "a", "b" }), (OutputsSpec::Names { "a" }));
}
#undef TEST_SUBSET
#define TEST_UNION(RES, THIS, THAT) \
ASSERT_EQ(OutputsSpec { RES }, (OutputsSpec { THIS }).union_(THAT));
TEST(OutputsSpec, union_all_all) {
TEST_UNION(OutputsSpec::All { }, OutputsSpec::All { }, OutputsSpec::All { });
}
TEST(OutputsSpec, union_all_names) {
TEST_UNION(OutputsSpec::All { }, OutputsSpec::All { }, OutputsSpec::Names { "a" });
}
TEST(OutputsSpec, union_names_all) {
TEST_UNION(OutputsSpec::All { }, OutputsSpec::Names { "a" }, OutputsSpec::All { });
}
TEST(OutputsSpec, union_names_names) {
TEST_UNION((OutputsSpec::Names { "a", "b" }), OutputsSpec::Names { "a" }, OutputsSpec::Names { "b" });
}
#undef TEST_UNION
#define TEST_DONT_PARSE(NAME, STR) \
TEST(ExtendedOutputsSpec, bad_ ## NAME) { \
std::optional extendedOutputsSpecOpt = \
ExtendedOutputsSpec::parseOpt(STR); \
ASSERT_FALSE(extendedOutputsSpecOpt); \
}
{
auto [prefix, outputsSpec] = parseOutputsSpec("foo^out");
ASSERT_EQ(prefix, "foo");
ASSERT_TRUE(std::get<OutputNames>(outputsSpec) == OutputNames({"out"}));
}
TEST_DONT_PARSE(carot_empty, "^")
TEST_DONT_PARSE(prefix_carot_empty, "foo^")
TEST_DONT_PARSE(garbage, "^&*()")
TEST_DONT_PARSE(double_star, "^**")
TEST_DONT_PARSE(star_first, "^*,foo")
TEST_DONT_PARSE(star_second, "^foo,*")
{
auto [prefix, outputsSpec] = parseOutputsSpec("foo^out,bin");
ASSERT_EQ(prefix, "foo");
ASSERT_TRUE(std::get<OutputNames>(outputsSpec) == OutputNames({"out", "bin"}));
}
#undef TEST_DONT_PARSE
{
auto [prefix, outputsSpec] = parseOutputsSpec("foo^bar^out,bin");
TEST(ExtendedOutputsSpec, defeault) {
std::string_view str = "foo";
auto [prefix, extendedOutputsSpec] = ExtendedOutputsSpec::parse(str);
ASSERT_EQ(prefix, "foo");
ExtendedOutputsSpec expected = ExtendedOutputsSpec::Default { };
ASSERT_EQ(extendedOutputsSpec, expected);
ASSERT_EQ(std::string { prefix } + expected.to_string(), str);
}
TEST(ExtendedOutputsSpec, all) {
std::string_view str = "foo^*";
auto [prefix, extendedOutputsSpec] = ExtendedOutputsSpec::parse(str);
ASSERT_EQ(prefix, "foo");
ExtendedOutputsSpec expected = OutputsSpec::All { };
ASSERT_EQ(extendedOutputsSpec, expected);
ASSERT_EQ(std::string { prefix } + expected.to_string(), str);
}
TEST(ExtendedOutputsSpec, out) {
std::string_view str = "foo^out";
auto [prefix, extendedOutputsSpec] = ExtendedOutputsSpec::parse(str);
ASSERT_EQ(prefix, "foo");
ExtendedOutputsSpec expected = OutputsSpec::Names { "out" };
ASSERT_EQ(extendedOutputsSpec, expected);
ASSERT_EQ(std::string { prefix } + expected.to_string(), str);
}
TEST(ExtendedOutputsSpec, out_bin) {
auto [prefix, extendedOutputsSpec] = ExtendedOutputsSpec::parse("foo^out,bin");
ASSERT_EQ(prefix, "foo");
ExtendedOutputsSpec expected = OutputsSpec::Names { "out", "bin" };
ASSERT_EQ(extendedOutputsSpec, expected);
ASSERT_EQ(std::string { prefix } + expected.to_string(), "foo^bin,out");
}
TEST(ExtendedOutputsSpec, many_carrot) {
auto [prefix, extendedOutputsSpec] = ExtendedOutputsSpec::parse("foo^bar^out,bin");
ASSERT_EQ(prefix, "foo^bar");
ASSERT_TRUE(std::get<OutputNames>(outputsSpec) == OutputNames({"out", "bin"}));
}
{
auto [prefix, outputsSpec] = parseOutputsSpec("foo^&*()");
ASSERT_EQ(prefix, "foo^&*()");
ASSERT_TRUE(std::get_if<DefaultOutputs>(&outputsSpec));
}
ExtendedOutputsSpec expected = OutputsSpec::Names { "out", "bin" };
ASSERT_EQ(extendedOutputsSpec, expected);
ASSERT_EQ(std::string { prefix } + expected.to_string(), "foo^bar^bin,out");
}
#define TEST_JSON(TYPE, NAME, STR, VAL) \
\
TEST(TYPE, NAME ## _to_json) { \
using nlohmann::literals::operator "" _json; \
ASSERT_EQ( \
STR ## _json, \
((nlohmann::json) TYPE { VAL })); \
} \
\
TEST(TYPE, NAME ## _from_json) { \
using nlohmann::literals::operator "" _json; \
ASSERT_EQ( \
TYPE { VAL }, \
(STR ## _json).get<TYPE>()); \
}
TEST_JSON(OutputsSpec, all, R"(["*"])", OutputsSpec::All { })
TEST_JSON(OutputsSpec, name, R"(["a"])", OutputsSpec::Names { "a" })
TEST_JSON(OutputsSpec, names, R"(["a","b"])", (OutputsSpec::Names { "a", "b" }))
TEST_JSON(ExtendedOutputsSpec, def, R"(null)", ExtendedOutputsSpec::Default { })
TEST_JSON(ExtendedOutputsSpec, all, R"(["*"])", ExtendedOutputsSpec::Explicit { OutputsSpec::All { } })
TEST_JSON(ExtendedOutputsSpec, name, R"(["a"])", ExtendedOutputsSpec::Explicit { OutputsSpec::Names { "a" } })
TEST_JSON(ExtendedOutputsSpec, names, R"(["a","b"])", (ExtendedOutputsSpec::Explicit { OutputsSpec::Names { "a", "b" } }))
#undef TEST_JSON
}

14
src/libutil/json-impls.hh Normal file
View file

@ -0,0 +1,14 @@
#pragma once
#include "nlohmann/json_fwd.hpp"
// Following https://github.com/nlohmann/json#how-can-i-use-get-for-non-default-constructiblenon-copyable-types
#define JSON_IMPL(TYPE) \
namespace nlohmann { \
using namespace nix; \
template <> \
struct adl_serializer<TYPE> { \
static TYPE from_json(const json & json); \
static void to_json(json & json, TYPE t); \
}; \
}

6
src/nix-build/nix-build.cc
View file

@ -397,7 +397,7 @@ static void main_nix_build(int argc, char * * argv)
auto bashDrv = drv->requireDrvPath();
pathsToBuild.push_back(DerivedPath::Built {
.drvPath = bashDrv,
.outputs = {"out"},
.outputs = OutputsSpec::Names {"out"},
});
pathsToCopy.insert(bashDrv);
shellDrv = bashDrv;
@ -421,7 +421,7 @@ static void main_nix_build(int argc, char * * argv)
{
pathsToBuild.push_back(DerivedPath::Built {
.drvPath = inputDrv,
.outputs = inputOutputs
.outputs = OutputsSpec::Names { inputOutputs },
});
pathsToCopy.insert(inputDrv);
}
@ -591,7 +591,7 @@ static void main_nix_build(int argc, char * * argv)
if (outputName == "")
throw Error("derivation '%s' lacks an 'outputName' attribute", store->printStorePath(drvPath));
pathsToBuild.push_back(DerivedPath::Built{drvPath, {outputName}});
pathsToBuild.push_back(DerivedPath::Built{drvPath, OutputsSpec::Names{outputName}});
pathsToBuildOrdered.push_back({drvPath, {outputName}});
drvsToCopy.insert(drvPath);

18
src/nix-env/nix-env.cc
View file

@ -478,9 +478,14 @@ static void printMissing(EvalState & state, DrvInfos & elems)
std::vector<DerivedPath> targets;
for (auto & i : elems)
if (auto drvPath = i.queryDrvPath())
targets.push_back(DerivedPath::Built{*drvPath});
targets.push_back(DerivedPath::Built{
.drvPath = *drvPath,
.outputs = OutputsSpec::All { },
});
else
targets.push_back(DerivedPath::Opaque{i.queryOutPath()});
targets.push_back(DerivedPath::Opaque{
.path = i.queryOutPath(),
});
printMissing(state.store, targets);
}
@ -751,8 +756,13 @@ static void opSet(Globals & globals, Strings opFlags, Strings opArgs)
auto drvPath = drv.queryDrvPath();
std::vector<DerivedPath> paths {
drvPath
? (DerivedPath) (DerivedPath::Built { *drvPath })
: (DerivedPath) (DerivedPath::Opaque { drv.queryOutPath() }),
? (DerivedPath) (DerivedPath::Built {
.drvPath = *drvPath,
.outputs = OutputsSpec::All { },
})
: (DerivedPath) (DerivedPath::Opaque {
.path = drv.queryOutPath(),
}),
};
printMissing(globals.state->store, paths);
if (globals.dryRun) return;

6
src/nix/app.cc
View file

@ -86,13 +86,13 @@ UnresolvedApp Installable::toApp(EvalState & state)
/* We want all outputs of the drv */
return DerivedPath::Built {
.drvPath = d.drvPath,
.outputs = {},
.outputs = OutputsSpec::All {},
};
},
[&](const NixStringContextElem::Built & b) -> DerivedPath {
return DerivedPath::Built {
.drvPath = b.drvPath,
.outputs = { b.output },
.outputs = OutputsSpec::Names { b.output },
};
},
[&](const NixStringContextElem::Opaque & o) -> DerivedPath {
@ -127,7 +127,7 @@ UnresolvedApp Installable::toApp(EvalState & state)
return UnresolvedApp { App {
.context = { DerivedPath::Built {
.drvPath = drvPath,
.outputs = {outputName},
.outputs = OutputsSpec::Names { outputName },
} },
.program = program,
}};

11
src/nix/bundle.cc
View file

@ -75,10 +75,10 @@ struct CmdBundle : InstallableCommand
auto val = installable->toValue(*evalState).first;
auto [bundlerFlakeRef, bundlerName, outputsSpec] = parseFlakeRefWithFragmentAndOutputsSpec(bundler, absPath("."));
auto [bundlerFlakeRef, bundlerName, extendedOutputsSpec] = parseFlakeRefWithFragmentAndExtendedOutputsSpec(bundler, absPath("."));
const flake::LockFlags lockFlags{ .writeLockFile = false };
InstallableFlake bundler{this,
evalState, std::move(bundlerFlakeRef), bundlerName, outputsSpec,
evalState, std::move(bundlerFlakeRef), bundlerName, extendedOutputsSpec,
{"bundlers." + settings.thisSystem.get() + ".default",
"defaultBundler." + settings.thisSystem.get()
},
@ -105,7 +105,12 @@ struct CmdBundle : InstallableCommand
auto outPath = evalState->coerceToStorePath(attr2->pos, *attr2->value, context2, "");
store->buildPaths({ DerivedPath::Built { drvPath } });
store->buildPaths({
DerivedPath::Built {
.drvPath = drvPath,
.outputs = OutputsSpec::All { },
},
});
auto outPathS = store->printStorePath(outPath);

7
src/nix/develop.cc
View file

@ -232,7 +232,12 @@ static StorePath getDerivationEnvironment(ref<Store> store, ref<Store> evalStore
auto shellDrvPath = writeDerivation(*evalStore, drv);
/* Build the derivation. */
store->buildPaths({DerivedPath::Built{shellDrvPath}}, bmNormal, evalStore);
store->buildPaths(
{ DerivedPath::Built {
.drvPath = shellDrvPath,
.outputs = OutputsSpec::All { },
}},
bmNormal, evalStore);
for (auto & [_0, optPath] : evalStore->queryPartialDerivationOutputMap(shellDrvPath)) {
assert(optPath);

8
src/nix/flake.cc
View file

@ -513,8 +513,12 @@ struct CmdFlakeCheck : FlakeCommand
auto drvPath = checkDerivation(
fmt("%s.%s.%s", name, attr_name, state->symbols[attr2.name]),
*attr2.value, attr2.pos);
if (drvPath && attr_name == settings.thisSystem.get())
drvPaths.push_back(DerivedPath::Built{*drvPath});
if (drvPath && attr_name == settings.thisSystem.get()) {
drvPaths.push_back(DerivedPath::Built {
.drvPath = *drvPath,
.outputs = OutputsSpec::All { },
});
}
}
}
}

16
src/nix/profile.cc
View file

@ -22,7 +22,7 @@ struct ProfileElementSource
// FIXME: record original attrpath.
FlakeRef resolvedRef;
std::string attrPath;
OutputsSpec outputs;
ExtendedOutputsSpec outputs;
bool operator < (const ProfileElementSource & other) const
{
@ -44,7 +44,7 @@ struct ProfileElement
std::string describe() const
{
if (source)
return fmt("%s#%s%s", source->originalRef, source->attrPath, printOutputsSpec(source->outputs));
return fmt("%s#%s%s", source->originalRef, source->attrPath, source->outputs.to_string());
StringSet names;
for (auto & path : storePaths)
names.insert(DrvName(path.name()).name);
@ -126,7 +126,7 @@ struct ProfileManifest
parseFlakeRef(e[sOriginalUrl]),
parseFlakeRef(e[sUrl]),
e["attrPath"],
e["outputs"].get<OutputsSpec>()
e["outputs"].get<ExtendedOutputsSpec>()
};
}
elements.emplace_back(std::move(element));
@ -308,12 +308,12 @@ struct CmdProfileInstall : InstallablesCommand, MixDefaultProfile
auto & [res, info] = builtPaths[installable.get()];
if (info.originalRef && info.resolvedRef && info.attrPath && info.outputsSpec) {
if (info.originalRef && info.resolvedRef && info.attrPath && info.extendedOutputsSpec) {
element.source = ProfileElementSource {
.originalRef = *info.originalRef,
.resolvedRef = *info.resolvedRef,
.attrPath = *info.attrPath,
.outputs = *info.outputsSpec,
.outputs = *info.extendedOutputsSpec,
};
}
@ -497,7 +497,7 @@ struct CmdProfileUpgrade : virtual SourceExprCommand, MixDefaultProfile, MixProf
.originalRef = installable->flakeRef,
.resolvedRef = *info.resolvedRef,
.attrPath = *info.attrPath,
.outputs = installable->outputsSpec,
.outputs = installable->extendedOutputsSpec,
};
installables.push_back(installable);
@ -553,8 +553,8 @@ struct CmdProfileList : virtual EvalCommand, virtual StoreCommand, MixDefaultPro
for (size_t i = 0; i < manifest.elements.size(); ++i) {
auto & element(manifest.elements[i]);
logger->cout("%d %s %s %s", i,
element.source ? element.source->originalRef.to_string() + "#" + element.source->attrPath + printOutputsSpec(element.source->outputs) : "-",
element.source ? element.source->resolvedRef.to_string() + "#" + element.source->attrPath + printOutputsSpec(element.source->outputs) : "-",
element.source ? element.source->originalRef.to_string() + "#" + element.source->attrPath + element.source->outputs.to_string() : "-",
element.source ? element.source->resolvedRef.to_string() + "#" + element.source->attrPath + element.source->outputs.to_string() : "-",
concatStringsSep(" ", store->printStorePathSet(element.storePaths)));
}
}